OK, let's work through this together. We're starting with 347 and we're going to multiply it by 454, which means we add 347 to itself 454 times.
Step 1: 0 + 347 = 347
Step 2: 347 + 347 = 694
Step 3: 694 + 347 = 1041
Step 4: 1041 + 347 = 1388
Step 5: 1388 + 347 = 1735
Step 6: 1735 + 347 = 2082
Step 7: 2082 + 347 = 2429
Step 8: 2429 + 347 = 2776
Step 9: 2776 + 347 = 3123
Step 10: 3123 + 347 = 3470
Step 11: 3470 + 347 = 3817
Step 12: 3817 + 347 = 4164
Step 13: 4164 + 347 = 4511
Step 14: 4511 + 347 = 4858
Step 15: 4858 + 347 = 5205
Step 16: 5205 + 347 = 5552
Step 17: 5552 + 347 = 5899
Step 18: 5899 + 347 = 6246
Step 19: 6246 + 347 = 6593
Step 20: 6593 + 347 = 6940
Step 21: 6940 + 347 = 7287
Step 22: 7287 + 347 = 7634
Step 23: 7634 + 347 = 7981
Step 24: 7981 + 347 = 8328
Step 25: 8328 + 347 = 8675
Step 26: 8675 + 347 = 9022
Step 27: 9022 + 347 = 9369
Step 28: 9369 + 347 = 9716
Step 29: 9716 + 347 = 10063
Step 30: 10063 + 347 = 10410
Step 31: 10410 + 347 = 10757
Step 32: 10757 + 347 = 11104
Step 33: 11104 + 347 = 11451
Step 34: 11451 + 347 = 11798
Step 35: 11798 + 347 = 12145
Step 36: 12145 + 347 = 12492
Step 37: 12492 + 347 = 12839
Step 38: 12839 + 347 = 13186
Step 39: 13186 + 347 = 13533
Step 40: 13533 + 347 = 13880
Step 41: 13880 + 347 = 14227
Step 42: 14227 + 347 = 14574
Step 43: 14574 + 347 = 14921
Step 44: 14921 + 347 = 15268
Step 45: 15268 + 347 = 15615
Step 46: 15615 + 347 = 15962
Step 47: 15962 + 347 = 16309
Step 48: 16309 + 347 = 16656
Step 49: 16656 + 347 = 17003
Step 50: 17003 + 347 = 17350
Step 51: 17350 + 347 = 17697
Step 52: 17697 + 347 = 18044
Step 53: 18044 + 347 = 18391
Step 54: 18391 + 347 = 18738
Step 55: 18738 + 347 = 19085
Step 56: 19085 + 347 = 19432
Step 57: 19432 + 347 = 19779
Step 58: 19779 + 347 = 20126
Step 59: 20126 + 347 = 20473
Step 60: 20473 + 347 = 20820
Step 61: 20820 + 347 = 21167
Step 62: 21167 + 347 = 21514
Step 63: 21514 + 347 = 21861
Step 64: 21861 + 347 = 22208
Step 65: 22208 + 347 = 22555
Step 66: 22555 + 347 = 22902
Step 67: 22902 + 347 = 23249
Step 68: 23249 + 347 = 23596
Step 69: 23596 + 347 = 23943
Step 70: 23943 + 347 = 24290
Step 71: 24290 + 347 = 24637
Step 72: 24637 + 347 = 24984
Step 73: 24984 + 347 = 25331
Step 74: 25331 + 347 = 25678
Step 75: 25678 + 347 = 26025
Step 76: 26025 + 347 = 26372
Step 77: 26372 + 347 = 26719
Step 78: 26719 + 347 = 27066
Step 79: 27066 + 347 = 27413
Step 80: 27413 + 347 = 27760
Step 81: 27760 + 347 = 28107
Step 82: 28107 + 347 = 28454
Step 83: 28454 + 347 = 28801
Step 84: 28801 + 347 = 29148
Step 85: 29148 + 347 = 29495
Step 86: 29495 + 347 = 29842
Step 87: 29842 + 347 = 30189
Step 88: 30189 + 347 = 30536
Step 89: 30536 + 347 = 30883
Step 90: 30883 + 347 = 31230
Step 91: 31230 + 347 = 31577
Step 92: 31577 + 347 = 31924
Step 93: 31924 + 347 = 32271
Step 94: 32271 + 347 = 32618
Step 95: 32618 + 347 = 32965
Step 96: 32965 + 347 = 33312
Step 97: 33312 + 347 = 33659
Step 98: 33659 + 347 = 34006
Step 99: 34006 + 347 = 34353
Step 100: 34353 + 347 = 34700
Step 101: 34700 + 347 = 35047
Step 102: 35047 + 347 = 35394
Step 103: 35394 + 347 = 35741
Step 104: 35741 + 347 = 36088
Step 105: 36088 + 347 = 36435
Step 106: 36435 + 347 = 36782
Step 107: 36782 + 347 = 37129
Step 108: 37129 + 347 = 37476
Step 109: 37476 + 347 = 37823
Step 110: 37823 + 347 = 38170
Step 111: 38170 + 347 = 38517
Step 112: 38517 + 347 = 38864
Step 113: 38864 + 347 = 39211
Step 114: 39211 + 347 = 39558
Step 115: 39558 + 347 = 39905
Step 116: 39905 + 347 = 40252
Step 117: 40252 + 347 = 40599
Step 118: 40599 + 347 = 40946
Step 119: 40946 + 347 = 41293
Step 120: 41293 + 347 = 41640
Step 121: 41640 + 347 = 41987
Step 122: 41987 + 347 = 42334
Step 123: 42334 + 347 = 42681
Step 124: 42681 + 347 = 43028
Step 125: 43028 + 347 = 43375
Step 126: 43375 + 347 = 43722
Step 127: 43722 + 347 = 44069
Step 128: 44069 + 347 = 44416
Step 129: 44416 + 347 = 44763
Step 130: 44763 + 347 = 45110
Step 131: 45110 + 347 = 45457
Step 132: 45457 + 347 = 45804
Step 133: 45804 + 347 = 46151
Step 134: 46151 + 347 = 46498
Step 135: 46498 + 347 = 46845
Step 136: 46845 + 347 = 47192
Step 137: 47192 + 347 = 47539
Step 138: 47539 + 347 = 47886
Step 139: 47886 + 347 = 48233
Step 140: 48233 + 347 = 48580
Step 141: 48580 + 347 = 48927
Step 142: 48927 + 347 = 49274
Step 143: 49274 + 347 = 49621
Step 144: 49621 + 347 = 49968
Step 145: 49968 + 347 = 50315
Step 146: 50315 + 347 = 50662
Step 147: 50662 + 347 = 51009
Step 148: 51009 + 347 = 51356
Step 149: 51356 + 347 = 51703
Step 150: 51703 + 347 = 52050
Step 151: 52050 + 347 = 52397
Step 152: 52397 + 347 = 52744
Step 153: 52744 + 347 = 53091
Step 154: 53091 + 347 = 53438
Step 155: 53438 + 347 = 53785
Step 156: 53785 + 347 = 54132
Step 157: 54132 + 347 = 54479
Step 158: 54479 + 347 = 54826
Step 159: 54826 + 347 = 55173
Step 160: 55173 + 347 = 55520
Step 161: 55520 + 347 = 55867
Step 162: 55867 + 347 = 56214
Step 163: 56214 + 347 = 56561
Step 164: 56561 + 347 = 56908
Step 165: 56908 + 347 = 57255
Step 166: 57255 + 347 = 57602
Step 167: 57602 + 347 = 57949
Step 168: 57949 + 347 = 58296
Step 169: 58296 + 347 = 58643
Step 170: 58643 + 347 = 58990
Step 171: 58990 + 347 = 59337
Step 172: 59337 + 347 = 59684
Step 173: 59684 + 347 = 60031
Step 174: 60031 + 347 = 60378
Step 175: 60378 + 347 = 60725
Step 176: 60725 + 347 = 61072
Step 177: 61072 + 347 = 61419
Step 178: 61419 + 347 = 61766
Step 179: 61766 + 347 = 62113
Step 180: 62113 + 347 = 62460
Step 181: 62460 + 347 = 62807
Step 182: 62807 + 347 = 63154
Step 183: 63154 + 347 = 63501
Step 184: 63501 + 347 = 63848
Step 185: 63848 + 347 = 64195
Step 186: 64195 + 347 = 64542
Step 187: 64542 + 347 = 64889
Step 188: 64889 + 347 = 65236
Step 189: 65236 + 347 = 65583
Step 190: 65583 + 347 = 65930
Step 191: 65930 + 347 = 66277
Step 192: 66277 + 347 = 66624
Step 193: 66624 + 347 = 66971
Step 194: 66971 + 347 = 67318
Step 195: 67318 + 347 = 67665
Step 196: 67665 + 347 = 68012
Step 197: 68012 + 347 = 68359
Step 198: 68359 + 347 = 68706
Step 199: 68706 + 347 = 69053
Step 200: 69053 + 347 = 69400
Step 201: 69400 + 347 = 69747
Step 202: 69747 + 347 = 70094
Step 203: 70094 + 347 = 70441
Step 204: 70441 + 347 = 70788
Step 205: 70788 + 347 = 71135
Step 206: 71135 + 347 = 71482
Step 207: 71482 + 347 = 71829
Step 208: 71829 + 347 = 72176
Step 209: 72176 + 347 = 72523
Step 210: 72523 + 347 = 72870
Step 211: 72870 + 347 = 73217
Step 212: 73217 + 347 = 73564
Step 213: 73564 + 347 = 73911
Step 214: 73911 + 347 = 74258
Step 215: 74258 + 347 = 74605
Step 216: 74605 + 347 = 74952
Step 217: 74952 + 347 = 75299
Step 218: 75299 + 347 = 75646
Step 219: 75646 + 347 = 75993
Step 220: 75993 + 347 = 76340
Step 221: 76340 + 347 = 76687
Step 222: 76687 + 347 = 77034
Step 223: 77034 + 347 = 77381
Step 224: 77381 + 347 = 77728
Step 225: 77728 + 347 = 78075
Step 226: 78075 + 347 = 78422
Step 227: 78422 + 347 = 78769
Step 228: 78769 + 347 = 79116
Step 229: 79116 + 347 = 79463
Step 230: 79463 + 347 = 79810
Step 231: 79810 + 347 = 80157
Step 232: 80157 + 347 = 80504
Step 233: 80504 + 347 = 80851
Step 234: 80851 + 347 = 81198
Step 235: 81198 + 347 = 81545
Step 236: 81545 + 347 = 81892
Step 237: 81892 + 347 = 82239
Step 238: 82239 + 347 = 82586
Step 239: 82586 + 347 = 82933
Step 240: 82933 + 347 = 83280
Step 241: 83280 + 347 = 83627
Step 242: 83627 + 347 = 83974
Step 243: 83974 + 347 = 84321
Step 244: 84321 + 347 = 84668
Step 245: 84668 + 347 = 85015
Step 246: 85015 + 347 = 85362
Step 247: 85362 + 347 = 85709
Step 248: 85709 + 347 = 86056
Step 249: 86056 + 347 = 86403
Step 250: 86403 + 347 = 86750
Step 251: 86750 + 347 = 87097
Step 252: 87097 + 347 = 87444
Step 253: 87444 + 347 = 87791
Step 254: 87791 + 347 = 88138
Step 255: 88138 + 347 = 88485
Step 256: 88485 + 347 = 88832
Step 257: 88832 + 347 = 89179
Step 258: 89179 + 347 = 89526
Step 259: 89526 + 347 = 89873
Step 260: 89873 + 347 = 90220
Step 261: 90220 + 347 = 90567
Step 262: 90567 + 347 = 90914
Step 263: 90914 + 347 = 91261
Step 264: 91261 + 347 = 91608
Step 265: 91608 + 347 = 91955
Step 266: 91955 + 347 = 92302
Step 267: 92302 + 347 = 92649
Step 268: 92649 + 347 = 92996
Step 269: 92996 + 347 = 93343
Step 270: 93343 + 347 = 93690
Step 271: 93690 + 347 = 94037
Step 272: 94037 + 347 = 94384
Step 273: 94384 + 347 = 94731
Step 274: 94731 + 347 = 95078
Step 275: 95078 + 347 = 95425
Step 276: 95425 + 347 = 95772
Step 277: 95772 + 347 = 96119
Step 278: 96119 + 347 = 96466
Step 279: 96466 + 347 = 96813
Step 280: 96813 + 347 = 97160
Step 281: 97160 + 347 = 97507
Step 282: 97507 + 347 = 97854
Step 283: 97854 + 347 = 98201
Step 284: 98201 + 347 = 98548
Step 285: 98548 + 347 = 98895
Step 286: 98895 + 347 = 99242
Step 287: 99242 + 347 = 99589
Step 288: 99589 + 347 = 99936
Step 289: 99936 + 347 = 100283
Step 290: 100283 + 347 = 100630
Step 291: 100630 + 347 = 100977
Step 292: 100977 + 347 = 101324
Step 293: 101324 + 347 = 101671
Step 294: 101671 + 347 = 102018
Step 295: 102018 + 347 = 102365
Step 296: 102365 + 347 = 102712
Step 297: 102712 + 347 = 103059
Step 298: 103059 + 347 = 103406
Step 299: 103406 + 347 = 103753
Step 300: 103753 + 347 = 104100
Step 301: 104100 + 347 = 104447
Step 302: 104447 + 347 = 104794
Step 303: 104794 + 347 = 105141
Step 304: 105141 + 347 = 105488
Step 305: 105488 + 347 = 105835
Step 306: 105835 + 347 = 106182
Step 307: 106182 + 347 = 106529
Step 308: 106529 + 347 = 106876
Step 309: 106876 + 347 = 107223
Step 310: 107223 + 347 = 107570
Step 311: 107570 + 347 = 107917
Step 312: 107917 + 347 = 108264
Step 313: 108264 + 347 = 108611
Step 314: 108611 + 347 = 108958
Step 315: 108958 + 347 = 109305
Step 316: 109305 + 347 = 109652
Step 317: 109652 + 347 = 109999
Step 318: 109999 + 347 = 110346
Step 319: 110346 + 347 = 110693
Step 320: 110693 + 347 = 111040
Step 321: 111040 + 347 = 111387
Step 322: 111387 + 347 = 111734
Step 323: 111734 + 347 = 112081
Step 324: 112081 + 347 = 112428
Step 325: 112428 + 347 = 112775
Step 326: 112775 + 347 = 113122
Step 327: 113122 + 347 = 113469
Step 328: 113469 + 347 = 113816
Step 329: 113816 + 347 = 114163
Step 330: 114163 + 347 = 114510
Step 331: 114510 + 347 = 114857
Step 332: 114857 + 347 = 115204
Step 333: 115204 + 347 = 115551
Step 334: 115551 + 347 = 115898
Step 335: 115898 + 347 = 116245
Step 336: 116245 + 347 = 116592
Step 337: 116592 + 347 = 116939
Step 338: 116939 + 347 = 117286
Step 339: 117286 + 347 = 117633
Step 340: 117633 + 347 = 117980
Step 341: 117980 + 347 = 118327
Step 342: 118327 + 347 = 118674
Step 343: 118674 + 347 = 119021
Step 344: 119021 + 347 = 119368
Step 345: 119368 + 347 = 119715
Step 346: 119715 + 347 = 120062
Step 347: 120062 + 347 = 120409
Step 348: 120409 + 347 = 120756
Step 349: 120756 + 347 = 121103
Step 350: 121103 + 347 = 121450
Step 351: 121450 + 347 = 121797
Step 352: 121797 + 347 = 122144
Step 353: 122144 + 347 = 122491
Step 354: 122491 + 347 = 122838
Step 355: 122838 + 347 = 123185
Step 356: 123185 + 347 = 123532
Step 357: 123532 + 347 = 123879
Step 358: 123879 + 347 = 124226
Step 359: 124226 + 347 = 124573
Step 360: 124573 + 347 = 124920
Step 361: 124920 + 347 = 125267
Step 362: 125267 + 347 = 125614
Step 363: 125614 + 347 = 125961
Step 364: 125961 + 347 = 126308
Step 365: 126308 + 347 = 126655
Step 366: 126655 + 347 = 127002
Step 367: 127002 + 347 = 127349
Step 368: 127349 + 347 = 127696
Step 369: 127696 + 347 = 128043
Step 370: 128043 + 347 = 128390
Step 371: 128390 + 347 = 128737
Step 372: 128737 + 347 = 129084
Step 373: 129084 + 347 = 129431
Step 374: 129431 + 347 = 129778
Step 375: 129778 + 347 = 130125
Step 376: 130125 + 347 = 130472
Step 377: 130472 + 347 = 130819
Step 378: 130819 + 347 = 131166
Step 379: 131166 + 347 = 131513
Step 380: 131513 + 347 = 131860
Step 381: 131860 + 347 = 132207
Step 382: 132207 + 347 = 132554
Step 383: 132554 + 347 = 132901
Step 384: 132901 + 347 = 133248
Step 385: 133248 + 347 = 133595
Step 386: 133595 + 347 = 133942
Step 387: 133942 + 347 = 134289
Step 388: 134289 + 347 = 134636
Step 389: 134636 + 347 = 134983
Step 390: 134983 + 347 = 135330
Step 391: 135330 + 347 = 135677
Step 392: 135677 + 347 = 136024
Step 393: 136024 + 347 = 136371
Step 394: 136371 + 347 = 136718
Step 395: 136718 + 347 = 137065
Step 396: 137065 + 347 = 137412
Step 397: 137412 + 347 = 137759
Step 398: 137759 + 347 = 138106
Step 399: 138106 + 347 = 138453
Step 400: 138453 + 347 = 138800
Step 401: 138800 + 347 = 139147
Step 402: 139147 + 347 = 139494
Step 403: 139494 + 347 = 139841
Step 404: 139841 + 347 = 140188
Step 405: 140188 + 347 = 140535
Step 406: 140535 + 347 = 140882
Step 407: 140882 + 347 = 141229
Step 408: 141229 + 347 = 141576
Step 409: 141576 + 347 = 141923
Step 410: 141923 + 347 = 142270
Step 411: 142270 + 347 = 142617
Step 412: 142617 + 347 = 142964
Step 413: 142964 + 347 = 143311
Step 414: 143311 + 347 = 143658
Step 415: 143658 + 347 = 144005
Step 416: 144005 + 347 = 144352
Step 417: 144352 + 347 = 144699
Step 418: 144699 + 347 = 145046
Step 419: 145046 + 347 = 145393
Step 420: 145393 + 347 = 145740
Step 421: 145740 + 347 = 146087
Step 422: 146087 + 347 = 146434
Step 423: 146434 + 347 = 146781
Step 424: 146781 + 347 = 147128
Step 425: 147128 + 347 = 147475
Step 426: 147475 + 347 = 147822
Step 427: 147822 + 347 = 148169
Step 428: 148169 + 347 = 148516
Step 429: 148516 + 347 = 148863
Step 430: 148863 + 347 = 149210
Step 431: 149210 + 347 = 149557
Step 432: 149557 + 347 = 149904
Step 433: 149904 + 347 = 150251
Step 434: 150251 + 347 = 150598
Step 435: 150598 + 347 = 150945
Step 436: 150945 + 347 = 151292
Step 437: 151292 + 347 = 151639
Step 438: 151639 + 347 = 151986
Step 439: 151986 + 347 = 152333
Step 440: 152333 + 347 = 152680
Step 441: 152680 + 347 = 153027
Step 442: 153027 + 347 = 153374
Step 443: 153374 + 347 = 153721
Step 444: 153721 + 347 = 154068
Step 445: 154068 + 347 = 154415
Step 446: 154415 + 347 = 154762
Step 447: 154762 + 347 = 155109
Step 448: 155109 + 347 = 155456
Step 449: 155456 + 347 = 155803
Step 450: 155803 + 347 = 156150
Step 451: 156150 + 347 = 156497
Step 452: 156497 + 347 = 156844
Step 453: 156844 + 347 = 157191
Step 454: 157191 + 347 = 157538

So, 347*454 = 157538